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BOSTON MARATHON 2025

Karen Burns

Bib: 25088•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F60-64)
#0 / 624
Top 37%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:12/mi
28:36
↑ 97↓ 3451.5%
10K· 6.21 mi
8:58/mi
56:26
↑ 79↓ 1380.4%
15K· 9.32 mi
9:24/mi
1:25:39
↑ 67↓ 78
20K· 12.43 mi
8:54/mi
1:53:17
↑ 106↓ 860.1%
Half· 13.11 mi
8:46/mi
1:59:16
↑ 19↓ 370.5%
25K· 15.53 mi
9:16/mi
2:21:44
↑ 66↓ 880.2%
30K· 18.64 mi
9:09/mi
2:50:10
↑ 181↓ 1480.2%
20M
12:39/mi
3:07:22
↑ 64↓ 500.2%
21M
9:35/mi
3:16:57
↑ 106↓ 241.6%
35K· 21.75 mi
10:59/mi
3:25:10
↑ 17↓ 861.7%
23M
9:25/mi
3:36:58
↑ 23↓ 630.6%
24M
9:12/mi
3:46:10
↓ 821.3%
40K· 24.85 mi
9:27/mi
3:54:15
↓ 200.3%
25.2M
10:15/mi
3:57:47
↑ 13↓ 160.2%
Finish· 26.22 mi
9:21/mi
4:07:19
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:16
Pace9:06 /mi
2nd Half
Distance13.11 mi
Time2:08:03
Pace9:46 /mi
📊Positive Split: 7.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:28:3128:369:1228:36
9:12
-
10K
6.21 mi11:56:2156:269:0527:50
8:58
-0:14
15K
9.32 mi12:25:341:25:399:1129:13
9:24
+0:26
20K
12.43 mi12:53:121:53:179:0727:38
8:54
-0:30
Half
13.11 mi12:59:111:59:169:065:59
8:46
-0:08
25K
15.53 mi13:21:392:21:449:0722:28
9:16
+0:30
30K
18.64 mi13:50:052:50:109:0828:26
9:09
-0:07
20M
20.00 mi14:07:173:07:229:2217:12
12:39
+3:30
21M
21.00 mi14:16:523:16:579:239:35
9:35
-3:04
35K
21.75 mi14:25:053:25:109:268:13
10:59
+1:24
23M
23.00 mi14:36:533:36:589:2611:48
9:25
-1:34
24M
24.00 mi14:46:053:46:109:259:12
9:12
-0:13
40K
24.85 mi14:54:103:54:159:258:05
9:27
+0:15
25.2M
25.20 mi14:57:423:57:479:263:32
10:15
+0:48
Finish
26.22 mi15:07:144:07:199:269:32
9:21
-0:54

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:46 /mi

Average Pace

9:26 /mi

Slowest Pace

12:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

5:59

2% of race

Time at Steady Pace

3:32:23

86% of race

Time at Slower Pace

28:57

12% of race

Average Pace: 9:26 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:28:3128:369:1228:36
9:12
#23255
10K
6.21 mi11:56:2156:269:0527:50
8:58
#22746
15K
9.32 mi12:25:341:25:399:1129:13
9:24
#23053
20K
12.43 mi12:53:121:53:179:0727:38
8:54
#22428
Half
13.11 mi12:59:111:59:169:065:59
8:46
#22338
25K
15.53 mi13:21:392:21:449:0722:28
9:16
#22126
30K
18.64 mi13:50:052:50:109:0828:26
9:09
#21442
20M
20.00 mi14:07:173:07:229:2217:12
12:39
#22145
21M
21.00 mi14:16:523:16:579:239:35
9:35
#21841
35K
21.75 mi14:25:053:25:109:268:13
10:59
#21945
23M
23.00 mi14:36:533:36:589:2611:48
9:25
#21736
24M
24.00 mi14:46:053:46:109:259:12
9:12
#21598
40K
24.85 mi14:54:103:54:159:258:05
9:27
#21470
25.2M
25.20 mi14:57:423:57:479:263:32
10:15
#21414
Finish
26.22 mi15:07:144:07:199:269:32
9:21
#21382
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi232559306930623487(Top 83%)9368(Top 77%)9368(Top 1501%)
10K6.21 mi3.10 mi22746+5099015+2919015+29122209(Top 78%)8716(Top 71%)8716(Top 1397%)
15K9.32 mi3.11 mi23053-3079157-1429157-14223487(Top 83%)9368(Top 77%)9368(Top 1501%)
20K12.43 mi3.11 mi22428+6258829+3288829+32820451(Top 72%)7743(Top 63%)7743(Top 1241%)
Half13.11 mi0.68 mi22338+908785+448785+4420827(Top 73%)7953(Top 65%)7953(Top 1275%)
25K15.53 mi2.42 mi22126+2128668+1178668+11721058(Top 74%)8132(Top 67%)8132(Top 1303%)
30K18.64 mi3.11 mi21442+6848328+3408328+34018432(Top 65%)6804(Top 56%)6804(Top 1090%)
20M20.00 mi1.36 mi22145-7038719-3918719-39126094(Top 92%)11057(Top 90%)11057(Top 1772%)
21M21.00 mi1.00 mi21841+3048573+1468573+14616505(Top 58%)5993(Top 49%)5993(Top 960%)
35K21.75 mi0.75 mi21945-1048650-778650-7724168(Top 85%)10148(Top 83%)10148(Top 1626%)
23M23.00 mi1.25 mi21736+2098565+858565+8518375(Top 65%)7182(Top 59%)7182(Top 1151%)
24M24.00 mi1.00 mi21598+1388507+588507+5818383(Top 65%)7248(Top 59%)7248(Top 1162%)
40K24.85 mi0.85 mi21470+1288456+518456+5118565(Top 65%)7421(Top 61%)7421(Top 1189%)
25.2M25.20 mi0.35 mi21414+568440+168440+1618171(Top 64%)7246(Top 59%)7246(Top 1161%)
Finish26.22 mi1.02 mi21382+328435+58435+520628(Top 73%)8460(Top 69%)8460(Top 1356%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21story building
+97ft-345ft

Overall

23487

Females

9368

F60-64

9368

5K→10K

3.1 - 6.2 mi

Top 78%
×5story building
+79ft-138ft

Overall

22209

Females

8716

F60-64

8716

10K→15K

6.2 - 9.3 mi

Top 83%
×3story building
+67ft-78ft

Overall

23487

Females

9368

F60-64

9368

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

20451

Females

7743

F60-64

7743

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

20827

Females

7953

F60-64

7953

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

21058

Females

8132

F60-64

8132

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

18432

Females

6804

F60-64

6804

30K→20M

18.6 - 20.0 mi

Top 92%
×5story building
+64ft-50ft

Overall

26094

Females

11057

F60-64

11057

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

16505

Females

5993

F60-64

5993

21M→35K

21.0 - 21.8 mi

Top 85%
×7story building
+17ft-86ft

Overall

24168

Females

10148

F60-64

10148

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

18375

Females

7182

F60-64

7182

23M→24M

23.0 - 24.0 mi

Top 65%
×6story building
+12ft-82ft

Overall

18383

Females

7248

F60-64

7248

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

18565

Females

7421

F60-64

7421

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

18171

Females

7246

F60-64

7246

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2story building
+22ft-21ft

Overall

20628

Females

8460

F60-64

8460

Passing Analysis

Category:
Athletes Passed
3260
Passed By
1387
Net Change
+1873
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23255
5K → 10K56051+509#23255#22746
10K → 15K83390-307#22746#23053
15K → 20K6305+625#23053#22428
20K → Half944+90#22428#22338
Half → 25K26250+212#22338#22126
25K → 30K6873+684#22126#21442
30K → 20M10713-703#21442#22145
20M → 21M3040+304#22145#21841
21M → 35K16120-104#21841#21945
35K → 23M2167+209#21945#21736
23M → 24M1446+138#21736#21598
24M → 40K1324+128#21598#21470
40K → 25.2M615+56#21470#21414
25.2M → Finish6129+32#21414#21382
TOTALS32601387+1873
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing